Harshman Bridge, Spanning Four Mile Creek, Concord-Fairhaven Road, Fairhaven, Preble County, OH
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Concord-Fairhaven Road, Fairhaven vicinity, OH
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Documentation compiled after 1968.
Survey number HAER OH-126
Unprocessed field note material exists for this structure (N992).
Building/structure dates: 1894 initial construction
Building/structure dates: 1963 subsequent work
Significance: Harshman Bridge is one of seven Childs trusses in the United States. Patented in 1846 by Horace Childs of New Hampshire, the Childs truss never came into the mainstream of covered bridge building, but Everett S. Sherman, an Ohio bridge builder, revived its use in the late nineteenth century.
Acton, James M.
Long, Col. Stephen H.
Historic American Engineering Record (Library of Congress)
ELEVATION FROM WEST.
PERSPECTIVE, NORTHEAST BY 50 DEGREES.
SOUTHEAST BY 150 DEGREES.
NORTH PORTAL ELEVATION, LOOKING SOUTH.
NORTHWEST, OBLIQUE PERSPECTIVE BY 320 DEGREES.
SOUTH PORTAL ELEVATION.
OBLIQUE PERSPECTIVE, SOUTHWEST.
DETAIL, NORTH ABUTMENT, EAST SIDE.
BELOW DECK SUSPENSION CONSTRUCTION DETAIL.
INTERIOR, NORTHWEST. NOTE TENSIONING BLOCKS FOR COMPRESSION MEMBERS.
INTERIOR, NORTH PORTAL.
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